<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="UTF-8" />
    <meta http-equiv="X-UA-Compatible" content="IE=edge" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <title>Document</title>
    <script src="https://cdn.jsdelivr.net/npm/vue@2.6.10/dist/vue.js"></script>
  </head>

  <body>
    <div id="app">
      <form action="##">
        请选择你的性别
        <input type="radio" name="sex" value="男" v-model="sex"/>男
        <input type="radio" name="sex" value="女" v-model="sex"/>女
      </form>
    </div>
    <script>
      Vue.config.productionTip = false;
      //实例化Vue
      const vm = new Vue({
        el: "#app",
        data() {
          return {
            sex:""
          };
        },
      });
    </script>
  </body>
</html>
